Describes and illustrates the following electric circuits suitable for student construction: basic circuit, dimmer, multivibrators, amplifiers, schmitt trigger, op-amplifier, radio reception, transmitter, sound effects generators, intercoms, and laboratory amplifier. (SK)

Discusses some of the common problems facing the librarian of geoscience publications, including standards, criteria for selecting materials, budgets, and availability of materials. (SA)

Presents 11 short descriptions on the applications of computers in chemistry classrooms and laboratories, including among others, using microcomputer graphics to teach quantum theory, a versatile and inexpensive instrument/computer interface, and a microcomputer-controlled scintillation spectrometer. (JN)

Describes an undergraduate physics experiment for studying Curie temperature and Curie constant of a ferromagnetic material. The exchange field (Weiss field) has been estimated by using these parameters. (HM)

Discusses some basic physical ideas about light scattering and describes a simple Raman spectrometer, a single prism monochromator and a multiplier detector. This discussion is intended for British undergraduate physics students. (HM)

A magnetic multipole apparatus suitable for the physics teaching laboratory is described. The apparatus enables the student to measure the magnetic field configuration of a single large coil, and of systems of one or more small coils. (Author/DS)

A technique is presented for producing holograms using equipment which is already in the possesion of the majority of college physics departments, which includes a slightly modified Michelson interferometer, a helium-neon laser, and a long focal-length lens. Production of high quality holograms has been achieved by inexperienced undergraduates…

Describes the nineteenth century wave machines which can be found in the Smithsonian Institution, at Kenyon, and other colleges. Included is information about the apparatus, queries, and descriptions of different wave machines and how they work. Information included may inspire the reader with similar apparatus to repair it and use it again.…

Describes a method for constructing undergravel filters made from common materials to provide suitable habitats for a diversity of aquatic organisms. (CS)

Describes a portable fluid power engineering laboratory and class demonstration apparatus designed to enable students to design, build, and test multi-actuator circuits. Features a variety of standard pneumatic values and actuators fitted with quick disconnect couplings. Discusses sequencing circuit boards, microcomputer control, cost, and…

Highlighted are characteristics of programs written for a pocket-sized programmable calculator to analyze mass spectra data (such as displaying high resolution masses for formulas, predicting whether formulas are stable molecules or molecular ions, determining formulas by isotopic abundance measurement) in a laboratory or classroom. (CS)

Suggestions are discussed for the teacher regarding a way in which hazardous chemical wastes can be disposed of by schools collectively, with primary responsibility on the teachers. (SA)

Presents a classical demonstration of polarization for high school students. The initial state of this model, which demonstrates the important concepts of the optical and quantum problems, was developed during the 1973 summer program on lecture demonstration at the U.S. Naval Academy. (HM)

Describes briefly three experiments, which are presented by three physics teachers to share their ideas with other teachers and readers. These experiments are: (1) a simple hazemeter for window pollution assessment; (2) the speed of light; and (3) the ball-bearing electric motor. (HM)

Describes potentially dangerous classroom situations involving toxic minerals. The intent of the article is to make students aware of the dangers so that they may act responsibly in health-related decisions as professional geologists. (Author/SA)